MIC2842AYMT TR Micrel Inc, MIC2842AYMT TR Datasheet - Page 3

• Manufacturer Part Number: MIC2842AYMT TR
• Description: IC LED DRIVR WHITE BCKLGT 10TMLF
• Manufacturer: Micrel Inc
• Type: Backlight, White LEDr

Specifications of MIC2842AYMT TR

• Topology: Linear (LDO)
• Number Of Outputs: 4
• Internal Driver: Yes
• Type - Primary: Backlight, Flash/Torch
• Type - Secondary: White LED
• Voltage - Supply: 3 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 10-TMLF®
• Operating Temperature: -40°C ~ 125°C
• Current - Output / Channel: 20mA
• Internal Switch(s): Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Frequency: -
• Efficiency: -
• Other names: 576-3472-2

Absolute Maximum Ratings
Main Input Voltage (V
Enable Input Voltage (V
LED Driver Voltage (V
Power Dissipation .....................................Internally Limited
Lead Temperature (soldering, 10sec.)....................... 260°C
Storage Temperature (T
ESD Rating
Electrical Characteristics
WLED Linear Drivers
V
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5kΩ in series with 100pF.
4. As determined by average current of all channels in use and all channels loaded.
5. The current through each LED meets the stated limits from the average current of all LEDs.
Micrel Inc.
August 2009
Parameter
Current Accuracy
Matching
Drop-out
Ground/Supply Bias Current
Shutdown Current
(current source leakage)
Digital Dimming
DC Input Voltage (V
Enable Input Current
t
t
t
t
t
t
t
IN
SHUTDOWN
MODE_UP
MODE_DOWN
PROG_HIGH, tPROG_LOW
DELAY
PROG_SETUP
START_UP
= V
DC
(5)
= 3.8V, R
(3)
................................................. ESD Sensitive
(4)
SET
DC
)
IN
D1-D4
= 20.5kΩ; V
) .................................. –0.3V to +6V
END
s
) .........................–65°C to +150°C
) ............................ –0.3V to +6V
) ............................ –0.3V to +6V
Conditions
Where I
V
I
V
Logic Low
Logic High
V
Time DC pin is low to put into shutdown
Time DC pin is low to change to Count Up Mode
Time DC pin is low to change to Count Down Mode
Time for valid edge count; Ignored if outside limit range
Time DC pin must remain high before a mode change
can occur
First down edge must occur in this window during
presetting brightness
Delay from DC is high to start up
OUT
D1-D4
DROPNOM
DC
DC
= 0V > 1260µs
= 1.2V
= 20mA
(1)
= 0.6V; T
LED
= 0.6V, 100% brightness level
= 90% of LED current seen at
J
= 25°C, bold values indicate –40°C ≤ T
3
Operating Ratings
Supply Voltage (V
Enable Input Voltage (V
LED Driver Voltage (V
Junction Temperature (T
Junction Thermal Resistance
2mm x 2mm Thin MLF
IN
)..................................... +3.0V to +5.5V
D1-D4
DC
1260
J
Min
100
420
100
140
(2)
) ........................ –40°C to +125°C
1.2
) .................................... 0V to V
2
5
) ................................... 0V to V
®
J
≤ 125°C; unless noted.
(θ
JA
).............................90°C/W
0.01
0.01
Typ
1.5
1.5
1.4
40
M9999-080309-D
Max
160
500
3.6
1.8
0.2
80
32
75
1
1
MIC2842A
Units
mV
mA
µA
µA
µs
µs
µs
µs
µs
µs
µs
%
%
V
V
IN
IN